/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package control;

import java.io.IOException;
import java.io.PrintWriter;
import java.math.BigInteger;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import model.Course;
import model.Exercise;
import org.hibernate.SQLQuery;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;

/**
 *
 * @author woutermkievit
 */
public class exercisecontroler extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    HttpSession sessie;
    MenuHandler menuHandler;
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        SessionFactory sessionFactory=SchoolContentManager.sessionFactory;
        Session session = sessionFactory.getCurrentSession(); //get the session from the sessionFactory
        Transaction transaction = session.beginTransaction(); //start the transaction
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        sessie = request.getSession();
        menuHandler=new MenuHandler(sessie);
       Exercise exercise=new Exercise();
        int get = Integer.parseInt(session.createSQLQuery("SELECT COUNT(E.exercise_id) FROM exercise E").list().get(0).toString());
       exercise.setId(get);
       exercise.setName(request.getParameter("exerciseName"));
       exercise.setDescription(request.getParameter("exerciseDescription"));
       exercise.setVolgnr(request.getParameter("volgnum"));
       exercise.setCourse((Course)sessie.getAttribute("course"));
       session.save(exercise);
       transaction.commit();
       response.sendRedirect("Menu?redirection=viewCourse&name=" + ((Course)sessie.getAttribute("course")).getcName());
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
